Eaglel Creek, Oregon . . .Built in the 1910s to acompany the opening of the Columbia River Highway, the Eagle Creek Trail was blasted out of the cliffs with dynamite by Italian engineers. It is one of Oregon's most spectacular paths, passing half a dozen major waterfalls. To maintain an easy grade through this rugged canyon, the builders blasted ledges out of sheer cliffs, bridged a colossal gorge, and even chipped a tunnel throught solid rock behind the 120-foot Tunnel Falls.